HTMLElement.lang
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
HTMLElement.lang 屬性（property）可以讀取或設定一個表示元素之語系的標籤屬性（attribute）值。
HTMLElement.lang 屬性所回傳的語系代碼定義於網際網路工程任務小組（IETF）的 Tags for Identifying Languages (BCP47) 文件中。常見的例子如 "en" 代表英語、"ja" 代表日語、"es" 代表西班牙語等等。此標籤屬性的預設值為 unknown。請留意，雖然此標籤屬性於個別層級的元素上是有效的，但大部分都設定於文件的根元素。
HTMLElement.lang 屬性只對 lang 標籤屬性有作用，而不是 xml:lang。
語法
var languageUsed = elementNodeReference.lang; // Get the value of lang elementNodeReference.lang = NewLanguage; // Set new value for lang
languageUsed is a string variable that gets the language in which the text of the current element is written. NewLanguage is a string variable with its value setting the language in which the text of the current element is written.
範例
js
// this snippet compares the base language and
// redirects to another url based on language
if (document.documentElement.lang === "en") {
window.location.href = "Some_document.html.en";
} else if (document.documentElement.lang === "ru") {
window.location.href = "Some_document.html.ru";
}
規範
| Specification |
|---|
| HTML Standard # dom-lang |